Bio 150-Exam 1 JMU || ANSWERS 100% CORRECT!!
Define Genetic Diversity correct answers Total genetic info contained within all individuals
of a species, population, or community.
Why is genetic diversity important? correct answers Provides raw material for adaptive
change
What is an 'adaptive change?' correct answers Happens when there is a change in genetic
sequencing to produce an individual who is better fit for a new environment.
An individual CANNOT make adaptive changes, but WHO can? correct answers offspring
Define species diversity correct answers The number and variety (diversity) of species in a
community or ecosystem
Why is species diversity important? correct answers species have a particular "role" in a
system, so the addition or loss of a species may have consequences for the entire system
How do we measure species diversity? correct answers species richness and evenness
What is species richness? correct answers number of species in given areas
What is Species evenness? correct answers relative abundance of different species, making
up the richness of an area
What are the 3 interrelated levels of biodiversity? correct answers genetics, species, and
ecosystem
Why are some graphs wrong about how many species are on earth? correct answers When
just given a number in a multiple choice question (absolute), and when given a pie chart with
no specific numbers (relative) --> some scientist could be bias towards studying microbes
(protists/prokaryotes)
Define ecosystem diversity correct answers Measure of the variety of biotic components in a
region along with abiotic components.
Why is ecosystem diversity important? correct answers ecosystem functioning is dependent
on interacting member organisms with their environment
Example of threats to biodiversity include things such as; __________? correct answers
littering, offshore drilling, *habitat destruction*, air pollution, run off pollution, over fishing
Name some ways you can preserve biodiversity from threats. correct answers Underwater
grass in some bays, farmers could use cover crops to reduce runoff of pesticides & chemicals,
mussel restoration to filter cleaner water, don't litter
What are the two biological benefits from biodiversity? correct answers Ecosystem
productivity and system stability
, Define system stability correct answers Is a biological benefit that occurs when diverse
systems are resilient (recover fast), and resistant disturbances
Define ecosystem productivity correct answers A biological benefit that occurs when diverse
systems have higher net primary productivity
What is the MAIN reason biodiversity is important? correct answers ecosystem services
What's the definition of the significance of biodiversity: ecosystem services. correct answers
All direct and indirect benefits that humans derive from organism and ecosystem
What is the subclass of ecosystem services? correct answers Existence value
Define existence Value correct answers economic value of a system and our willingness to
mitigate biodiverity loss
What is the greatest threat to biodiversity? correct answers Human Over population = habitat
destruction = potential extinction of other species
Define invasive species correct answers cause ecological or economic harm
Define non-native species correct answers Cause potential ecological or economic benefits
What is one of the most invasive species? correct answers cats
Why are biodiversity threats often referred to as," interacting?" correct answers When there is
a change in a habitat, it opens up for for invasive species
What are the 4 types of ecosystem services? correct answers provisioning (production of food
and water)
Regulating (controlling climate and diseases)
Supporting (nutrient cycles and oxygen production)
Cultural (spiritual & recreational benefits)
(HINT: {Acronym} People Really Should Care)
Can viruses be treated by antibiotics? correct answers no
Can viruses reproduce independently? correct answers no
Why don't viruses make protein? correct answers Don't have ribosomes & don't generate
ATP
Which is bigger than the other, viruses or bacteria? correct answers bacteria is bigger than
viruses
Do bacteria reproduce independently? correct answers yes; they have ribosomes & generate
ATP (hence why can't make us sick)
Define antibiotic resistance correct answers When a drug no longer becomes affective
Define Genetic Diversity correct answers Total genetic info contained within all individuals
of a species, population, or community.
Why is genetic diversity important? correct answers Provides raw material for adaptive
change
What is an 'adaptive change?' correct answers Happens when there is a change in genetic
sequencing to produce an individual who is better fit for a new environment.
An individual CANNOT make adaptive changes, but WHO can? correct answers offspring
Define species diversity correct answers The number and variety (diversity) of species in a
community or ecosystem
Why is species diversity important? correct answers species have a particular "role" in a
system, so the addition or loss of a species may have consequences for the entire system
How do we measure species diversity? correct answers species richness and evenness
What is species richness? correct answers number of species in given areas
What is Species evenness? correct answers relative abundance of different species, making
up the richness of an area
What are the 3 interrelated levels of biodiversity? correct answers genetics, species, and
ecosystem
Why are some graphs wrong about how many species are on earth? correct answers When
just given a number in a multiple choice question (absolute), and when given a pie chart with
no specific numbers (relative) --> some scientist could be bias towards studying microbes
(protists/prokaryotes)
Define ecosystem diversity correct answers Measure of the variety of biotic components in a
region along with abiotic components.
Why is ecosystem diversity important? correct answers ecosystem functioning is dependent
on interacting member organisms with their environment
Example of threats to biodiversity include things such as; __________? correct answers
littering, offshore drilling, *habitat destruction*, air pollution, run off pollution, over fishing
Name some ways you can preserve biodiversity from threats. correct answers Underwater
grass in some bays, farmers could use cover crops to reduce runoff of pesticides & chemicals,
mussel restoration to filter cleaner water, don't litter
What are the two biological benefits from biodiversity? correct answers Ecosystem
productivity and system stability
, Define system stability correct answers Is a biological benefit that occurs when diverse
systems are resilient (recover fast), and resistant disturbances
Define ecosystem productivity correct answers A biological benefit that occurs when diverse
systems have higher net primary productivity
What is the MAIN reason biodiversity is important? correct answers ecosystem services
What's the definition of the significance of biodiversity: ecosystem services. correct answers
All direct and indirect benefits that humans derive from organism and ecosystem
What is the subclass of ecosystem services? correct answers Existence value
Define existence Value correct answers economic value of a system and our willingness to
mitigate biodiverity loss
What is the greatest threat to biodiversity? correct answers Human Over population = habitat
destruction = potential extinction of other species
Define invasive species correct answers cause ecological or economic harm
Define non-native species correct answers Cause potential ecological or economic benefits
What is one of the most invasive species? correct answers cats
Why are biodiversity threats often referred to as," interacting?" correct answers When there is
a change in a habitat, it opens up for for invasive species
What are the 4 types of ecosystem services? correct answers provisioning (production of food
and water)
Regulating (controlling climate and diseases)
Supporting (nutrient cycles and oxygen production)
Cultural (spiritual & recreational benefits)
(HINT: {Acronym} People Really Should Care)
Can viruses be treated by antibiotics? correct answers no
Can viruses reproduce independently? correct answers no
Why don't viruses make protein? correct answers Don't have ribosomes & don't generate
ATP
Which is bigger than the other, viruses or bacteria? correct answers bacteria is bigger than
viruses
Do bacteria reproduce independently? correct answers yes; they have ribosomes & generate
ATP (hence why can't make us sick)
Define antibiotic resistance correct answers When a drug no longer becomes affective
